This is silly, just use graphviz: http://graphviz.org/ http://graphviz.org/ it's widely-used, more feature-full and more flexible, at the price of perhaps a s

This is silly, just use graphviz: http://graphviz.org/ http://graphviz.org/ it's widely-used, more feature-full and more flexible, at the price of perhaps a slightly less intuitive format (though even that's debatable). Online editing + rendering: https://edotor.net/ https://edotor.net/ or here: https://dreampuf.github.io/GraphvizOnline/ https://dreampuf.github.io/GraphvizOnline/